Description

Butane-2-Sulfonyl Chloride is a versatile and highly reactive organosulfur compound, specifically a sulfonyl chloride derivative of butane. Its primary value lies in its role as a key sulfonylation reagent and building block for introducing the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to synthesize active ingredients, intermediates, and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing sulfonamide drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides that contain sulfonyl functional groups.
• Polymer Chemistry: Acts as a monomer or modifier in the synthesis of specialty polymers and materials.
• Organic Synthesis Reagent: Employed in laboratories and pilot plants for sulfonylation reactions to create novel compounds for research and development.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of certain sulfonated dyes and colorants.
• Ligand and Catalyst Preparation: Used to functionalize ligands and create catalysts for various chemical processes.

Basic Information

Product Name	Butane-2-Sulfonyl Chloride
CAS No.	4375-72-8
Molecular Formula	C₄H₉ClO₂S
Molecular Weight	156.63 g/mol
Synonyms	2-Butanesulfonyl chloride; sec-Butanesulfonyl chloride; Butane-2-sulphonyl chloride; 1-Methylpropane-1-sulfonyl chloride; 2-Butylsulfonyl chloride; (RS)-2-Butanesulfonyl chloride; (±)-2-Butanesulfonyl chloride; Butanesulfonyl chloride (mixed isomers)
EINECS	Contact for details

Quality Control

Our Butane-2-Sulfonyl Chloride is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.